The BCM is responsible for controlling various electrical systems in the vehicle, such as the lights, windows, locks, and wipers. It also communicates with other modules in the vehicle, such as the engine control module (ECM), to ensure that all systems are functioning properly.
The PCM, on the other hand, is responsible for controlling the engine and transmission. It monitors engine sensors and adjusts fuel injection and ignition timing to optimize performance and fuel economy. It also communicates with other modules in the vehicle, such as the BCM, to ensure that all systems are functioning properly.
In short, the BCM is responsible for controlling the electrical systems in the vehicle, while the PCM is responsible for controlling the engine and transmission.
